Filling and solidification process of aluminum alloy cylinder head with titling casting process were simulated by the Magma software

and relationship of the distribution of casting defects with filling velocity

air entrapment and solidification sequence in titling casting process were analyzed.The results were validated in actual production.In the subsequent optimization process

the porosity defects in the castings were eliminated by enlarging the feed riser

and the risk of porosity defects on the integrated exhaust side was reduced greatly by changing the tilting angle velocity from uniform speed to ladder speed

and the qualified rate of the castings reached to 96%.